dhcpcd-discuss

On 20/07/2019 20:02, Roy Marples wrote:
> On 20/07/2019 14:50, Matěj Grégr wrote:
> > 1) I would like to detect if an IPv4 address is assigned via dhcpcd or
> > set up statically by an administrator. isc-dhclient sets dynamic flag
> > for an ipv4 address. e.g.
> >
> > dhclient
> > inet 192.168.1.202/24 brd 192.168.1.255 scope global dynamic tge3
> >     valid_lft 26574sec preferred_lft 26574sec
> >
> > but it's not the case for dhcpcd
> >
> > dhcpcd
> > inet 192.168.1.202/24 brd 192.168.1.255 scope global noprefixroute tge3
> >     valid_lft forever preferred_lft forever
> >
> >  From iproute2 manpage it looks like, the dynamic flag should be probably
> > used for IPv6 only, so I am not sure if dhclient behavior is correct,
> > but it really helps to distinguish between static addresses and
> > addresses assigned by dhcp. Would you accept a patch to enable setting
> > the flag? Currently I compare the address listed in a lease file with
> > the address configured on the interface, but it's not so nice.
>
> This isn't actually quite so trivial.
> I need to give the address a lifetime and there currently isn't 
> infrastructure for it in dhcpcd - for IPv4 addresses anyway.
>
> I'll look at adding this over the next few days/weeks.

Added in a few patches:
https://roy.marples.name/cgit/dhcpcd.git/commit/?id=d1468fbdad0e288b23c9e5181d1de4476691ae61
https://roy.marples.name/cgit/dhcpcd.git/commit/?id=ac7a941ecbd1a129d7857f724e10e32ad4fd5748
https://roy.marples.name/cgit/dhcpcd.git/commit/?id=54c45c961a0a86f9c100d6da97c9004c179cea63

Roy